Collapsible container



Oct. 31, 1961 E. l.. ARNESON COLLAPSIBLE CONTAINER Nall:

Oct. 31, 1961 E. L. ARM-:SON 3,006,522

COLLAPSIBLE CONTAINER Filed March 11, 1957 8 sheetssnee: 2

INVENTOR ZZZZUUZNZ65O7Z,

MMMFWM Oct. 3l, 1961 Filed March ll, 1957 E. l.. RNESON 3,006,522

COLLAPSIBLE CONTAINER Oct. 31, 1961 E. L. ARNEsoN I3,006,522

COLLAPSIBLE CONTAINER Filed March ll, 1957 8 Sheets-Sheet 4 IN V EN TOR.

MW W

E.L.ARNESON COLLAPSIBLE CONTAINER 8 Sheets-Sheet 5 i 7g I Oct. 31, 1961Filed March 11, 1957 Oct. 3l, 1961 E, L, ARNESON 3,005,522

COLLAPSIBLE CONTAINER Filed March 11, 1957 8 Sheets-Shea?l 6 1N VEN TOR.

A fdd/)2l @Pme-072, t

-MMMM/f Www/M @g Oct. 31, 1961 E. L. ARNEscN 3,006,522

' COLLAPSIBLE CONTAINER INVENTOA S [da/ral @1266075 Oct. 31, 1961 E. L..ARNEsoN 3,005,522

COLLAPSIBLE CONTAINER Filed March ll, 1957 8 Sheets-Shea?l 8 mvENToR.Zak/WZ. $726607@ IIIIIIIIII l um WS @Q MN Q W Y M LS, f s Q 1S ag; L

5 7% NN A United States Patent O 3,006,522 CGLLAPSIBLE CONTAINER EdwinL. Arneson, Morris, lll., assignor to Federal Paper Board Company, Inc.,Bogota, NJ., a corporation of New York Filed Mar. 11, 1957, Ser. No.645,177 20 Claims. (Cl. 229-55) The present invention relates generallyto an improved form of collapsible container which is provided with newand improved end closure or partition supporting means, the new andimproved supporting means capable of being formed integral with the mainbody portion of the container and/or a cover member from a one-pieceblank. Still further, the present invention is directed to acontainer-forming apparatus for use in erecting the new and improved endclosure or partition supporting construction to place the containerprovided with the same in condition for use.

It is an object of the present invention to provide an improvedpartition or closure supporting arrangement integrally formed with thebody portion of a container from a single blank, the container blankprovided with the improved supporting arrangement being capable offormation into a collapsed container in an elicient and time-savingmanner, and the collapsed container being readily and easily erectableto provide a strong and long lasting partition or end closure supportingarrangement, the partition or closure being readily and easilyinsertabie within the container into supporting relation with the newand improved supporting arrangement.

Another object is to provide an end construction for a container whichis readily adapted for integral formation with the body portion of thecontainer from a single onepiece blank, the end construction being ofuncomplicated design and being readily and inexpensively formed, the endconstruction still further being readily erectable into operativeposition and adapted for collapsing to allow the container provided withthe same to be folded in a flattened condition for storage and shipmentpurposes, the end construction still further being provided withsturdily constructed and arranged enclosure supporting means which .areself-bracing and adapted for long-life use.

A further object is to provide a closure or partition supportingarrangement adapted for use with a container, which arrangementincorporates certain features of design which adapts the same forseveral modified uses with different types of containers and whichfurther allows the same to be continuously reused following collapsingor erection over a long period of time, the supporting arrangement andassociated container being inexpensively formed and, in this respect,being disposable if desired.

Still another object is to provide an erecting device particularlyadapted for use with the end construction of the present invention, thedevice being used primarily with a specific form of end constructionincorporating the principles of the present invention to erect the samewith respect to an associated body container portion when the containeris placed into use from a collapsed storing condition.

Other objects not specifically set forth will become apparent from thefollowing detailed description made in conjunction with the drawingswherein:

FIG. 1 is a plan View of a container blank having integrally formedtherewith the elements of the end construction of the present invention;

FIG. 2 is an elevation on reduced scale of an erected container formedfrom the blank of FIG. 1;

FIG. 3 is a sectional view of the blank of FIG. 1 illustrating the iirststage in the operation of forming a collapsed container from the same;

FIG. 4 is a view similar to FIG. 3 illustrating further 3,065,522Patented Oct. 31, 1961 steps taken in forming a container from the blankof FIG. l;

FIG. 5 is a top plan View illustrating the final steps taken in formingthe blank of FIG. 1 into a collapsed container;

FIG. 6 is an end elevation of a completely formed collapsed container;

FIG. 7 is a bottom plan view of the erected container formed from theblank of FIG. l;

FIG. 8 is an enlarged fragmentary section of the end construction of thecontainer taken generally along line 8-8 of FIG. 7;

FIG. 9 is a bottom plan view partly broken away of the completelyerected container formed from the blank of FIG. 1 having an end closureinserted in its operative supported position;

FIG. 10 is an enlarged fragmentary section of the end construction andend closure taken generally along line Iii-1t) of FIG. 9;

FIG. 11 is a fragmentary plan view of a blank having integrally formedtherewith elements of a modied form of end construction;

FIG. l2 is a side elevation on reduced scale of an erected containerformed from the blank of FIG. 11;

FIG. 13 is an enlarged fragmentary vertical section of the endconstruction of an erected container formed from the blank of FIG. 1lprior to the insertion of an end closure;

FIG. 14 is a fragmentary vertical section similar to FIG. 13illustrating the positioning of an end closure in its operativeposition;

FIG. 15 is a fragmentary plan view of a container blank havingintegrally formed therewith elements of a further modified form of endconstruction;

FIG. 16 is a fragmentary top plan View of an erected container formedfrom the blank of FIG. 15 and having the end closure partially brokenaway to illustrate the structural features of the assembled endconstruction;

FIG. 17 is a plan View on reduced scale of a container blank havingintegrally formed therewith elements of still another modification ofthe end construction of the present invention;

FIG. 18 is an elevation of a container formed from the blank of FIG. 17;

FIG. 19 is a fragmentary and enlarged vertical section of the containerof FIG. 18 illustrating the positioning of the elements of the endconstruction just prior to completed assembly of the same;

FIG. 20 is a View similar to FIG. 19 illustrating the end constructionof the container of FIG. 18 in its fully assembled form;

FIG. 21 is a fragmentary vertical section of the container of FIG. 18prior to the erection of the end construction of the same;

FIG. 22 is a fragmentary plan view of a blank having fonned therewithstill a further modification of the end construction of the presentinvention;

FIG. 23 is an enlarged fragmentary vertical section of a containerformed from the blank of FIG. 22 illustrating the relative positioningof the elements of the end construction prior to complete erection ofthe container;

FIG. 24 is an enlarged fragmentary vertical section of a containererected from the blank of FIG. 22;

FIG. 25 is an enlarged fragmentary vertical section of a completelyerected container formed from a blank modified in certain respects ascompared to the blank of FIG. 22;

FIG. 26 is a top plan view of a device particularly adapted for use inerecting the form of end construction provided the blank of FIG. 22;

FIG. 27 is a bottom plan View of the device of FIG. 26;

FIG. 28 is a vertical section of the device of FIG. 26 illustrating itsuse with a container of the type shown in FIG. 25 in erecting the endconstruction of the same;

FIG. 29 is a View similar to FIG. 28 illustrating the final assembly ofthe end construction;

FIG. 30 is a plan View of a container cover member blank havingintegrally formed therewith the elements for supporting an end closuredisk, these elements utilizing the structural principles of the endstructure elements illustrated in FIG. 22; Y

FIG. 3l is an enlarged fragmentary vertical section of the cover memberof FIG. 30 illustrating the relative positioning of the elements of theclosure disk supporting construction prior to complete erection of thecover member;

FIG. 32 is an enlarged fragmentary vertical section of the erected covermember mounted in its operative position on an erected container;

FIG. 33 is a fragmentary plan View of a blank formed to provide afurther modified end construction for supporting a closure disk;

FIG. 34 is Van enlarged fragmentary plan View of an erected endconstruction using the blank of FIG. 33 and illustrating the modifiedform of cooperating flange structure; and v FIG. 35 is an enlargedfragmentary elevation of the erected end construction utilizing theblank of FIG. 33 and further illustrating the cooperating action betweenthe flanges thereof.

While the following description deals with the formation of cylindricalcontainers which are adapted for use in the packaging of many differentitems and are particularly associated with the merchandising of icecream and other foodstuffs, it should be understood that the structuralfeatures to be described in connection with the end construction ofthese containers are adapted for use with many different forms ofcontainers. Still further, the type of container to be described is adisposable type formed from flexible cardboard material, and while thedescription of the present invention is limited to this type ofcylindrical container, it is not intended by so limiting the descriptionto limit the scope of the present invention. Consequently, the use ofthe principles and structural features of the end construction of thepresent invention may be varied considerably and such variable uses areintended to fall within the scope of the present invention. It should beclear that the containers may be of any desired shape, such as oval orcone-shaped, and if desired, the shapes of the containers including theend construction of the present invention may be such that thecontainers are capable of being nested in their erected condition.

In FIG. l a blank 34? is illustrated as including a body portion panel31, the lowermost margin of which is defined by a score line 32extending continuously across the same. Integrally formed with thelowermost margin by the score line 32 are a plurality of spaced fingers33 which have integrally formed therewith along margins defined byinterrupted score lines 34, a second series of spaced fingers 35. Thelowermost margins of the fingers 35 are defined by a continuous scoreline 36 which defines the area of integral interconnection between thefingers 35 and a continuous band or strip 37. The band 37 defines thelowermost portion of the blank 30 and through the integralinterconnection between the ngers 33 and 35, the band 37 maintains thetwo series of spaced fingers in proper alignment with the body portionpanel 31. The spacing between the pairs of fingers 33 and 3S is definedby a plurality of S-shaped apertures 38 which are formed from theexcising of material of the blank 30. The apertures 38 define recesses39 and projections 40 in the side margins of the fingers 33 and 35.Opposite side margins of each nger are provided with a recess 39 and aprojection 40 and, as will be subsequently more clearly described, theS-shaped apertures allowed the side margins of the fingers 33 and 35 tobe brought into abutting engagement upon the erection of a containerfrom the blank 30 and the projections 40 of adjacent pairs of fingerscooperate with one another in overlapping relation to provide the ngerswith mutual support.

The body portion panel 31, just inwardly of its opposite or top margin,is provided with a score line 41 extending continuously across the panel31 and defining a foldable edge band or strip 42. The blank 30 isdivided into transverse sections by score lines 43 and 44 which extendacross the entire blank 30 including the strips 37 and 42 and areinterrupted solely by diamond-shaped openings 45 separating adjacentpairs of fingers 33 and 35 from one another. The openings l45 allow theassembled blank 33 to be folded along the score lines 43 and 44 to placethe container formed from the blank 30 in a collapsed condition forstorage and shipment purposes. The upper right hand corner of the blank30 has a cut-out portion 46 formed by removal of an end section of thestrip 42 for a purpose to be described. The lower left hand corner ofthe blank 30, as viewed, is provided with a tab 47 which is acontinuation of the strip 37. The fingers 35 are of greater length thanthe fingers 33 to allow the end construction formed thereby to beassembled as will now be described in connection with FIGS. 3-6.

In FIG. 3 the initial folding operation followed in forming the blank 30into a cylindrical container 4S shown in FIG. 2 is accomplished by thefolding of the end construction, including the fingers 33 and 35 andband 37, along the score line 32 against the inner surface of the bodyportion panel 31 which is the bottom surface as viewed in FIG. 3. Thesecond step is shown in FIG. 4 in solid lines and includes the reversefolding of the `fingers 35 and band 37 along the score line 34 andagainst the inner surfaces of the fingers 33 to allow the band 37 toproject outwardly with respect to the end of the body portion panel 31.At this stage in the folding operation a suitable adhesive is applied tothe exposed upper surfaces of the strips 37 and 42 and the same arefolded respectively along their score lines 36 and 41 into the positionshown in broken lines. The adhesive `applied to their top surfacespromotes adhesion between opposed surfaces of the strips 37 and 42 andportions of the outer surface of the body portion panel 31.

As illustrated in FIG. 5, the fingers 33 and 35 have been folded againstone another and form fiat flanges generally designated by the numeral 49which lie flat against the inner surface of the body portion panel 31 inparallel relation thereto. The right hand section of the body portionpanel 31, as viewed, with its associated end construction elements isfolded inwardly along the score line 43 into parallel relation with theinner surface of the center portion of the body portion panel 31. Uponthe completion of this folding operation a suitable adhesive lis appliedto the edge portion 50 of the outer surface of the blank 30 and the lefthand section of the blank is folded along the score line 44 into contacttherewith. The excised portion 46 allows edge contact between the endsof the strip 42, and the iiap 47 allows the strip 37 to be formed into acontinuous outer band. Following the final folding step a collapsedcontainer 48 formed from the blank 30 is completed as illustrated inFIG. 6. The container 48 in its collapsed condition may be convenientlystored or shipped in large quantities at lowcost due to the space-savingfeatures present.

Referring'to FIGS. 7-10, the stages of erection of the collapsedcontainer 48 of FIG. 6 will be described. In FIG. 7 the container 48 isshown after Ibeing moved into a cylindrical shape from its collapsedcondition of FIG. 6 and, as particularly illustrated in FIG. 8, the

flanges 49 formed from the fingers 33 and 35 tend to move radiallyoutwardly from the inner surface of the body portion panel 31 during theshaping operation. The fixing of the band 37 to the outer surface of thebottom edge of the body portion panel 31 fixes the relation of thefingers 33 and 35 with respect to one another. As previously described,the fingers 35 are of greater length than the fingers 33 and thisarrangement allows the body portion panel 31 to be moved into acylindrical shape without the fingers 35 pulling the fingers 33downwardly to an extent that the flanges 49 formed thereby are directedoutwardly of the bottom portion of the container 48. 'Ihe initial stageof erection of the container 48 places the flanges 49 in an inclinedrelation with the inner surface of the body portion panel 31, as shownin FIG. 8, and the side margins of the fingers 33 and 35, defined by thegrooves 39 and projections 4f) move toward one another as shown in FIG.7. Upon completion of the shaping of the body portion panel 31 of thecontainer 4S, and end closure or disk 51 is inserted within the bodyportion of the container 4S through the opening in the top thereof andmoved downwardly into flat and edge-abutting relation with the topsurfaces of the fingers 33 as shown in FIGS. 9 and 10. The forcing ofthe disk 51 downwardly moves the flanges 49 into a substantially fiatcondition, as shown in FIG. l0, and further downward movement of thefianges 47 is limited by the bracing action of the fingers 35. In theirfinal operative position, the flanges 49 are brought into edge-abuttingrelation with one another, as shown in FIG. 9, and the projections 4f)of the fingers 33 and 35 abut the edges of adjacent grooves 39.

Referring again to the blank 30 of FIG. 1, it will be particularly notedthat each adjacent pair of interconnected fingers 33 and 35 formingflanges 49 have their projections 40 and recesses 39 oppositelypositioned. Consequently, the oppositely positioned projections 40 willoverlap one another when the container 48 is fully erected. This featureis shown in FIG. 9 wherein a portion of one of the bottom fingers 35 isbroken away and its associated top finger 33 positioned thereabove ispartly shown with its projection 40 overlapping the projection 4i) of anadjacent bottom finger 35. The overlapping of the projections 4i)provides mutual supporting action between the flanges 49 to furtherstrengthen the end construction. The bringing of adjacent side marginsof the fingers 33 and 35 into abutting relation, as illustrated in FIG.9, further provides a tightly sealed end construction and preventslateral displacement of the flanges 49 from their operative position insupporting the disk 51. As further shown in FIG. 9, the diamondshapedopenings 45 are substantially closed by abutment between opposite edgesof the same when the flanges 49 are in supporting relation with the disk51. The completely erected container 48 of FIG. 2 is provided with astrongly supported bottom end construction which is completely closedand a suitable lid r closure member of any known type may be applied tothe top thereof following the lling of the same with the material to bepackaged.

In FIG. ll a slightly modified blank 52 is provided with the samestructural features of the blank 30 of FIG. l with but a slight changein dimensions of the fingers forming the bottom disk supporting flanges.As a result of the structural similarities between the elements of theblanks 52 and 3-3, the same reference numerals are used to indicatesimilar parts thereof. 'Ihe blank 52 is designed to allow the strip 37to be folded against the inner surface of the body portion panel 31 andto bring this about the fingers 35 are shorter in length than thefingers 33. The reason for this difference in length is clearlyillustrated in FIGS. 13 and 14 and a cylindrical container 53 shown inFIG. 12 results from the folding of the blank 52.

Referring particularly to FIGS. 13 and 14, the band 37 and associatedfingers 33 and 35 are folded in such a manner that the band 37 isadhesively fixed to the inner surface of the body portion panel 31 nearthe bottom edge thereof. As shown particularly in FIG. 13, the erectedcontainer 53 prior to the insertion of a bottom disk is provided withthe inwardly directed and upwardly inclined flanges 47. As a result of`the placing of the band 37 within the body portion panel 31 of thecontainer 53, the ngers 35 become the fingers which directly contact thedisk 51 when the same is inserted in its end closing position as shownin FIG. 14. The fingers 33 become the bracing fingers and are of greaterlength than their interconnected fingers 35 to brace the same frommovement outwardly of the end of the container 53 when weight is appliedthereto. Generally speaking, the band 37 and fingers 33 and 35 may beaccordionfolded yabout their interconnecting score lines, adhesiveapplied to the band 37 and the entire accordion-pleated assembly foldedabout the score line 32 in parallel relation with the body portion panel31 and pressed against the same to au extent that the band 37 adheres tothe inner surface thereof.

A further slight modification of the end construction of the presentinvention is shown in FIGS. l5 and 16 wherein a portion of a modiedblank 54 is illustrated as being provided with a body portion panel,interconnected pairs of flange-forming fingers and a marginal continuousstrip similar to the elements described in connection with the blank 3i)of FIG. l. These elements being exactly the same with respect to theirfunctioning are also identified by the same reference numerals and themodifications residing in the blank 54 deals with the shape of theopenings between the flange-forming ngers. The side margins of each ofthe fingers 33 and 35 of the blank 54 are inclined inwardly toward theirinterconnections to denne diamond-shaped openings 55 between each of theinterconnected pairs of fingers. As shown in FIG. 16, in lookingdownwardly through the top opening of a completely assembled and erectedcontainer 56 formed from the Iblank 54 and having a portion of thebottom end closure 51 broken away, the adjacent edges 57 of thediamond-shaped openings 55 are brought into a-butment to provide acompletely closed ring of flanges 49I in supporting relation with thebot-tom disk 51. While the overlapping functioning of the material ofthe fingers 33 and 35 defining the S-shaped openings 38 of the blanks313 and 52 is preferred, it has been found that the bracing actionafforded by the relative positioning of the fingers 33 and 35 and thepositioning of the band 37 with respect to the body portion panel 31 isadequate to properly support the end closure 51 against displacement andprevent end failure in the erected and filled container.

FIG. 17 illustrates a further modified blank 58 from which a cylindricalcontainer may be formed being provided Iwith an end construction of thetype described in connection with FIGS, 1-10. The blank 58 is formedfrom a body portion panel 59 provided just inwardly from its uppermostmargin, as viewed, with a continuous score line 60 extending across theblank 58 and defining a top band 61. The lowermost margin of the bodyportion panel 59 is defined by a continuous score line 62 which in turnydefines the integral connection of the bottom margin of the bodyportion panel 59 with a plurality of spaced fingers 63, each of which isintegrally joined with a second series of spaced fingers 64, the line ofconnection being defined by an interrupted score line 65. 'I'helowermost margins of the fingers 64 opposite their margins ofinterconnection with the fingers 63 are defined by a continuous scoreline 66 which in turn defines their points of integral interconnectionwith a continuous strip or band 67. The spacing of adjacent pairs offingers `63 and 64 is provided by a plurality of excised portions 68which are S-shaped and are provided with edges having overlappingprojections and adjacent recesses of the type previously described. Theblank 58 is subdivided transversely by a plurality of spaced score lines69 to facilitate the forming of a cylindrical container 70, shown inFIG. 18, which has a large diameter.

The ,container 70 of FIG. 18 is formed from the blank 58 by reverselyfolding the band 67 about the score line 66 and against the outersurfaces of the fingers 63 and 64 as shown in FIG. 21. The blank 58 isthen folded and glued to form a collapsed container 70 (not shown) whichis erectable as Will be described. Adhesive is now applied to a surfaceof the band 67 to fix the same with respect to the outer surface of thebody portion panel 59. To properly form the blank 58 into a collapsedcontainer 70 the body portion panel 59 and strip 67 are provided withflaps 71 and 72 respectively which overlap the opposite ends of thepanel and band for iixing thereto by the use of adhesive as previouslydescribed in connection with the blank of FIG. 1.

FIGS. 19-21 illustrate the difference in functioning of certain elementsof the blank 58 when the same is formed into the container 7i). Thefingers 64 are of greater length than the lingers 63 to allow the latterto be moved into a substantially horizontal plane at right angles withthe vertical side walls dened 'by the body portion panel 59. The fingers64 are inclined upwardly in an inwardly direction to brace the fingers63 in forming a plurality of inwardly directed edge-abutting iianges 73of the type previously described. An end closure 74 is then placed insupporting engagement with the top surface of the fingers 63 and thecontainer 7) is completely formed. In bringing this about, thepositioning of the band 67 must be iixed with respect to the outersurface of the body portion panel 59 to maintain the flanges 73 in theiredgeabutting and disk-supporting position. 'Ille body portion panel 59is relatively short in height Whereas the band -67 is relatively wide,and in erecting the container 70 from a collapsed condition the band 67is slidingly moved along the outer surface of the body portion panel 59toward the upper end thereof. The extent of upward movement of the band67 is limited to place the anges 73 in their operative positions byedge-abutment between the top marginal edge of the band 67 with thebottom marginal edge of the outwardly and downwardly folded strip 61.Abutment between these edges is shown in FIG. 20 yand the anges 73 atthis final stage of the erection of the container 70 extend inwardly inproper supporting Yrelation with the end closure 74 and in partiallyoverlapping and edge-abutting relation with adjacent anges 73.

As shown in FIG. 21, in forming the container 70 from the blank 58 intocollapsed condition it is necessary merely to reversely fold the band 67against the outer surfaces of `the fingers 63 and 64 and the bodyportion panel 59. The width of the band 67 may be sufficient to overlapa portion of lthe panel 59 extending inwardly beyond the score line 62,but it has been -found that in erecting the carton 70 from its collapsedform the band 67 will be capable of sliding upwardly along the outersurface of the body portion panel 59 even though its uppermost marginaledge is positioned adjacent or below the score line 62.

Still ya further modification of end construction for collapsiblecontainers is shown in FIGS. 22-25. Referring in particular to FIG. 22,a blank 75 is illustrated as having a body portion panel 76 integrallyformed with identical end constructions along each of the opposite endmargins thereof. Each of these opposite margins is partially defined byinterrupted score lines 77 which hingedly attach ngers 78 to the bodyportion panel 76. Fingers 79 of greater length than the iingers 78 areintegrally connected to margins of the lingers 78 by interrupted scorelines 80. Continuous score lines 81 define continuous marginal strips orbands 82 and the pairs of attached fingers 78 and 79 are spaced from oneanother -by S-shaped excised portions 83, the

edges of which deiine projections and recesses of the type previouslydescribed. The blank 75 is transversely divided into relative foldablesections by a plurality of spaced score lines S4, and in folding theblank 75 to form a container in its collapsed form, the proceduredescribed in connection with the blank 58 of FIG. 17 is followed and theelements of the end constructions in ltheir collapsed condition aresimilar to that 'illustrated in FIG. 21.

The blank 75 differs from the blank 58 in that similar end constructionsare provided for both ends of the container 85 formed therefrom. Theblank 75 is particularly adapted for use in `the formation of tallcontainers wherein the bands 82 are positioned about outer end surfacesof the body portion panel 76 in slidable relation therewith and are notxed thereto by the use of adhesive or any other suitable means. To allowthe bands 82 to be positioned about the outer surface of the bodyportion panel 76, the fingers 79 are of greater length than the fingers78 to brace the latter in providing a plurality of edge-abutting flanges86 similar to the anges 73 previously described. The blank 75 is furtherprovided with a tab-like portions 87 and 88 integrally formed with thebody portion panel 76 and bands 82 respectively for adhesiveinterconnection with the opposite margins of the blank 75 during theformation of a collapsed container 85.

To limit the slidable movement of the bands 82 toward the center of thebody portion panel 76 upon the erection of the container 85 and therebyassuring proper positioning of the iianges 86, abutment means in theform o-f lugs or projections 89 are excised from the materialY of thelingers 78 adjacent their interconnection with the marginal portions ofthe body portion panel 76. The lugs S9 are retained in coplanar relationwith the body portion panel 76 when the blank 75 is formed into acollapsed container 85 and the same is erected as shown in FIG. 24. rIheoutermost edges of these lugs abut the inner surfaces of the fingers 79near the score lines 81 when the fingers 78 and 79 are properlypositioned :in supporting relation with a bottom end closure disk and inconiining relation with a top end closure disk 91 as shown in FIG. 24.The extent to which the lugs 89 project outwardly from the score lines77 controls the extent to which the bands 82 move toward the center ofthe body portion panel 76 in sliding engagement with the outer surfacethereof thereby controlling the desired positioning of the flanges 86.

As previously described, the bands 82 are positioned about the outersurfaces of the lingers 78 and 79 when the container 85 is in itscollapsed condition. In erecting the container 85 the bottom band 82 ismoved inwardly toward the center of the body portion panel 76 as shownin FIG. 23 and the fingers 78 and 79 move relative to one another toultimately form the flanges 86 directed radially inwardly toward thecenter of the container 85. Upon continued movement of the bottom band82 toward the center of the body portion panel 76, the lugs 89ultimately contact the fingers 79 near their integral connection withthe band 82 as defined by the score line 81. The bottom end closure 90is then placed within the interior of the container 85 in restingengagement with the top surfaces of the fingers 78. The container may befilled with any type of material and a top end closure 91 is then placedwithin the container to seal the top end thereof and the top endconstruction is manipulated in the same manner as described inconnection with the bottom end construction shown in FIG. 23 to iix thetop end closure 91 within the container as shown in FIG. 24.

The use of end constructions of the type described at each end of thecontainer 85 is particularly desirable where the material placed withinthe container is of substantial weight. For example, containers of thisnature are particularly adapted for the packaging of roong tar or waxand regardless of which end supports the total weight of the contents ofthe container, the anges 86 are capable of preventing failure of thecontainer S which would result in loss of contents or exposure of thesame. In gaining access into the interior of the container 85 it isnecessary merely to retract one of the bands 82 by sliding it away fromthe center of the body portion panel 76 thereby bringing the ngers 73and 79 into substantially coplanar relation with the body portion panel76. At this point the end closure 90 or 91 may lbe removed and thematerial within the container 85 is made accessible.

ln FIG. 25 the same type of end construction previously described inconnection with the blank 75 of FIG. 22 is illustrated as being utilizedwith a container 92 at the bottom end thereof. The top end of thecontainer 92 is provided with an outwardly and downwardly turned band 93adhesively secured to the outer surface of the body portion panel 76 andadapted to receive thereabout a conventional form of top end closure orlid. From a description of the elements shown in FIGS. 22- 24, it shouldbe clear that the end construction is fully adapted for use at eitherone or both ends of a container depending upont he type of end closuresupport desired.

FIGS. 26-29 illustrate a device 94 for use in erecting the endconstruction described in connection With FIGS. 22-25. In FIGS. 26 and27 the device 94 is illustrated as being formed from separatesemi-circular member 95 and 96 which are connected by a hinge 97 toallow the member to be moved away from one another to receivetherebetween a container carrying an end construction for erection. Themember 95 carries a pair of ears 93 which receive therebetween a lockingrod 99 hinged at one end to the member 96. The end of the locking rod 99received within the ears 98 is provided with a nut 100 which holds themembers 95 and 96 in their operative relation while the containerpositioned therewithin is having its end construction erected.

The manner in which a container 92 is placed into completely erectedcondition by use of the erecting device 94 is illustrated in FIGS. 28and 29. The members 95 and 96 along their inner vertical surfaces areprovided with horizontally aligned, radially inwardly directed arcuateflanges 102 which define radially and downwardly opening grooves 103 forreceiving therewithin the strip 82 of the container 92. 'Ihe strip 82 ispositioned within the grooves 103 by closing the members 95 and 96 withrespect to one another and locking the same by use of the rod 99 andears 98. The innermost surfaces of the flanges 102 are arcuate andincline outwardly in an upwardly direction to provide a camming surfaceto buckle the ngers 78 and 79 about their interconnecting score lines 80inwardly and urge the lugs 89 inwardly when the body portion panel 76 ismoved downwardly into the interior of the device 94. As shown in FIG.28, the body portion panel 76 is in the process of being moveddownwardly and the fingers 78 and 79 are moving into their radialrelation with the body portion panel 76 to form the flanges 86. The lugs89 are being cammed inwardly by the inwardly sloping surfaces 104 toclear the upper edge of the band 82 received within the grooves 103. Asshown in FIG. 29, the lugs 89 have cleared the top edge of the band 82to allow the same to be brought into abutting relation with the topsurface of the fingers 79 near their score lines 81 interconnecting thesame with the band 82.

Upon completion of the operation as shown in FIG. 29, the anges 86 areproperly positioned within the container 92 to receive in supportedrelation therewith an end closure disk. The completely erected container92 is removed from the erecting device 94 by releasing the locking bar99 and moving the members 95 and 96 away from one another about theirhinge connection 97.

The foldable flange type closure disk supporting construction describedin connection with the drawings with emphasis being placed on thedilerent modified forms of constructions utilizing the principles of thepresent invention can readily be incorporated in the formation of aremovable cover member for use with any known type of container andparticularly for use with the type of containers previously described.In FIG. 30 a one-piece cover member blank is illustrated as being formedfrom a band or strip 106 integrally attached along one of its margins toa plurality of fingers 107 which are foldable relative thereto alongperiodically interrupted score lines 108. The margins of the lingers 107opposite their attachment to the band 106 are integrally formed withcooperating lingers 109 by score lines 110. The opposite margins of thefingers 109 are in turn integrally and foldably formed with a strip orband 111 to thus complete the main elements of the blank 105.

The foldable finger construction is similar to that described in FIG. 22in connection with the blank 75 and the opposite side margins of thefingers 107 and 109 are provided with cooperative projections 112 andrecesses 113 to provide a self-supporting flange arrangement when theblank 105 is erected. Similarly, the margin of the band 106interconnected with the fingers 107 is provided with spaced flanges ortabs 114 which are excised from the material of the lingers 107.Suitable end tabs 115 are provided at the ends of the bands 106 and 111for gluing purposes as previously described for the forming of the blank105 into a collapsed cover member or cover member rim.

The collapsed cover member rim is formed from the blank 105 by foldingthe blank in half along its approximate center line defined by the scorelines 110 thus forming flanges 116 illustrated in FIG. 31 which arefolded inwardly into edge or side abutting relation. A series oftransverse score lines 117 allow the blank 105 to be readily folded,glued and erected in a rim-like shape with the flanges directed inwardlyas illustrated in FIG. 31. The band 111 is received about the outersurface of the band or cover member body portion 106 in sliding relationtherewith as a result of the fingers 109 being of greater length thanthe fingers 107. In erecting the cover member rim of FIG. 3l the band111 and 106 are slidaoly moved relative to one another in oppositedirections until the ends of the tabs or flanges 114 abut the innersurfaces of the fingers 109. The cover member rim formed from the blank105 is readily erected for use from a collapsed condition in the samemanner as described in connection with the end constructions of thecontainer formed from the blank 75 of FIG. 22.

FIG. 32 illustrates the use of the cover member rim formed from theblank 105 in xing a closure disk 118 in sealing engagement with the topedge of a container 119. The container 119 is of the same constructionas the container 92 of FIG. 25 and, as a result, like reference numeralsare used to identify the same structural elements. Upon completeerection of the cover member rim from the blank 105, the closure disk118 may be readily received therein in supported engagement with theoutermost surfaces of the fingers 107 and thus held in engagement withthe top edge of the container Wall 76. The completely assembled covermember is readily received about the outer surface of the container 119and may be readily removed therefrom, dismantled and refolded into itscollapsed condition for storage prior to reuse if such is desired. Thetype of cover member described in connection with FIGS. 30-32 may bereadily set up or erected similarly to the containers 93 by use of theapparatus illustrated and described in FIGS. 26-29. While a cover memberhas been described as being formed from a flange arrangement of the typeillustrated in FIG. 22, it should be apparent that the flangearrangements of FIGS. 1, 1l, 15 and 17 may also be used.

Still a further modified form of disk supporting flange structure isshown in FIGS. 33-35. In first considering FIG. 33, an end structure ofa blank 120 is illustrated as including a body portion panel 121 havingintegrally attached thereto a plurality of fingers 122. The margins ofthe fingers 122 opposite their attachment to the body portion 121 areintegrally formed with cooperating fingers 123 by score lines 124. Theopposite margins of the lingers 123 are in turn integrally and foldablyformed with a marginal strip or band 125. The joined fingers 122 and 123cooperate to define closure disk supporting flanges 126 which in theirerected condition, as shown in FIGS. 34 and 35, have the side marginsthereof telescopically related with adjacent side margins of adjacentanges.

To provide for interleaving or telescopically joining adjacent flanges126, each of the joined finger structures of the blank 12) is providedwith an outwardly inclined or projecting side margin 127 and an inwardlyrecessed opposite side margin 12S. Thus, each linger constructiondefining a vliauge 126 is oftset centrally thereof at the score line 124in a direction toward the right as viewed in FIG. 33. The centraloffsetting of each ringer construction may be reversed, i.e. to the leftas viewed in FIG. 33, as long as the direction of offset is consistentin any one blank. Upon forming the flanges 126I in the same manner aspreviously described in connection with the several modifications of thepresent invention, the projecting side margins'127 of cooperatingfingers 122 and 123 form a projection 129' Which is telescopicallyreceived within an adjacent flange 126, the recessed side margins 128 ofthe fingers 122 and 123 of the adjacent ange overlapping a substantialmarginal portion of the projection 129. Thus, with each flange 126 theproject- 'ing side margins 127 of the same are telescopically receivedin an adjacent fiange while the recessed side margins telescopicallyreceive another flange to define an alternating telescopic andinterleaved structure.

In all other structural respects the end construction of the blank 12%is the same as those previously described which utilize spaced liangesor tabs 13d excised from the material of the fingers 122. Suitable endtabs 131 are provided at the ends of the body portion 121 and band 125for gluing purposes in the manner previously described when the blank12d is formed into a cylindrical end construction. As shown in FIG. 34,a closure disk 132 is supported by the inner surfaces of the fianges 126and the interleaving structural arrangement of these flanges providesincreased support for the closure disk 132 thus allowing the containerwhich includes this particular type of end construction to support andhold material of greater weight without rupturing.

The ange end construction of the blank 121i can be readily used in theformation of a bottom disk supporting structure in a container or a topdisk supporting structure in a removable cover member for a container.The length of the body portion 121 Will control this particular use and,as previously described, the end construction of the blank 120 is set upin the same manner as discussed above. Upon setting up this particularend constructiongthe band 125 is received about the outer surface of thebody portion 121 with the projecting tabs 130 abutting the outer endmargins of the fingers 123 in close proximity to the continuous scoreline 133 integrally joining the lingers with the band 125 The abovedescription illustrates different end constructions or closure disksupporting arrangements of uncomplicated design each of which is readilyadapted for forming from a one-piece blank in integral connection withthe main body'portion of a collapsible container and collapsible covermember of the throw-away type. The forming of the one-piece blankincluding the end construction of the present invention may be readilyaccomplished by the use of uncomplicated cutting dies and the foldingand xingof the elements of the blank to provide a collapsed container orcover member is a simple process which does not require the use ofexpensive apparatus or skilled personnel. Many different variations maybe utilized in the end construction of the present invenuon asillustrated by the various modifications described above and theprinciples utilized in the design of the end construction are readilyadapted for variation to meet different requirements in the formation ofcollapsible containers. The elements of the end constructions areprotected against damage during storage or shipment when the containeror cover member is in its collapsed form by reason of the flanges formedfrom the relatively foldable fingers being received Within the interiorof the collapsed body portion of the container or cover member. Uponcompletion of the first stage of erecting the container or cover memberfrom its collapsed condition, the iianges of the end construction moveoutwardly away from the inner surface of the body portion in position toreceive in supporting relation an end closure disk inserted through thetop of the container or bottom of the cover member and moved intocontact with the flanges. Following use of the container or covermember, in the event that disposal of the same is undesired, the endclosure disk may be readily removed from the interior of the bodyportion and the container or cover member may be returned to itscollapsed condition with the flanges folded in substantially parallelrelation with the body portion panel inwardly of the end thereof andprotected by the same.

1n addition to the foregoing important advantages residing in the use ofthe end constructions of the present invention, it should beparticularly noted that the flanges forming the bottom of a containerare closely related to the horizontal and thus positioned in closeproximity to a supporting surface when the container is erected andbeing filled or used. Where the container is used in packaging icecream, the use of a scoop or the like to remove the ice cream from thebottom portion of the container resulting in the scraping of the bottomclosure disk by the scoop and the application of substantial pressureagainst the bottom closure disk does not cause the closure disk torupture as the flanges of the end construction are in close proximity tothe solid supporting surface. Still further, the flanges extend radiallyinwardly a substantial distance so as to provide the bottom closure diskwith appreciable support inwardly of the periphery thereof.

This application is a continuation-in-part of my copending application,Serial No. 620,286, tiled November 5, 1956, now abandoned, Which is acontinuation-in-part of my copending application, Serial No. 586,999,filed May 24, 1956, also now abandoned.

Obviously many modifications and variations of the invention ashereinbefore set forth may be made without departing from the spirit andscope thereof, and therefore only such limitations should be imposed asare indicated in the appended claims.

II claim:

l. An end construction of a cylindrical container member comprising aplurality of radially inwardly extending flanges, and an end closuredisk supported by said lianges, each of said anges being formed from apair of interconnected lingers one of which is connected to the bodyportion of said container member and the other of which is connected toa continuous marginal band extending inwardly from the end of saidcontainer member provided with said flanges and in engagement with asurface of said body portion, one of the fingers of each pair beingshorter in length than the other, said shorter finger being connectedwith said body portion and the other finger being connected with saidband, said band being in engagement With the outer surface of said bodyportion and being movable relative thereto toward and away from theopposite end of said container member, the movement of said band towardsaid opposite end being limited by abutment means carried by said bodyportion to maintain the other finger of each liange in angular bracingrelation with the shorter linger interconnected therewith.l

2. The end construction of claim 1 wherein side portions of adjacentflanges are interleaved in telescopic relation.

3, An end construction of a cylindrical container member comprising aplurality of radially inwardly extendmg anges, and an end closure disksupported by said flanges, each of said flanges being formed from a pairof interconnected tingers one of which is connected to the body portionof said container member and the other of which is connected to acontinuous marginal band extending inwardly from the end of saidcontainer member provided with said lflanges and in engagement with asurface of said body portion, one of the iingers of each pair beingshorter in length than the other, said shorter fingers being in `directsupporting engagement with said end closure disk while said otherfingers extend inwardly of the end of said container memberinterconnecting said band with the innermost ends of said shorter ingersin angular bracing relation therewith, said band being in engagementwith the outer surface of said body portion and being movable relativethereto toward and away from the opposite end of said container member,the movement of said band toward said opposite end being limited byabutment means on the outer surface of said body portion, a marginalportion of said opposite end being folded inwardly of said body portionalong the outer surface thereof to form said abutment means.

4. An end construction of a cylindrical container member comprising aplurality of radially inwardly extending anges, and an end closure disksupported by said anges, each -of said iianges being formed `from a pair,of interconnected iingers one of which is connected to the body portionof said container member and the other of which is connected to acontinuous marginal band extending inwardly lfrom the end of saidcontainer member provided with said iianges and in engagement with asurface of said body portion, one of the iingers of each pair beingshorter in length than the other, said shorter linger being connectedwith said body portion and the other iinger being connected with saidband, said band being in engagement with the outer surface of said bodyportion and being movable relative thereto toward and away from theopposite end of said container member, the movement of said band towardsaid opposite end being limited by abutment means carried by said bodyportion, said abutment means being in the form of spaced projectionscoplanar with said body portion and positioned to abut said other ngersat least adjacent their points of interconnection with said band tomaintain a bracing `angular relation with said shorter iingers bylimiting movement of said band toward the opposite end of said containermember.

5. The end construction of claim 4 wherein side portions of adjacentanges are interleaved in telescopic relation.

6. An end construction of a cylindrical container member comprising aplurality of radially inwardly extending anges, and an end closure disksupported by said flanges, each of said flanges being formed from a pairof interconnected fingers one of which is connected to the body portionof said container member and the other of which is connected to acontinuous marginal band extending inwardly from the end of saidcontainer member provided with said anges and in engagement with asurface of said body portion, one of the fingers of each pair beingshorter in length than the other, said shorter fingers being in directsupporting engagement with said end closure disk while said otherfingers extend inwardly of the end of said container memberinterconnecting said band with the innermost ends of said Shorterfingers in angular bracing relation therewith, said band being inengagement with the outer surface of said body portion and being movablerelative thereto toward and away from the opposite end of said containermember, the movement of said band toward said opposite end being limitedby abutment means carried by said body portion, said abutment meansbeing in the form of spaced projections coplanar with said body portionand positioned to abut said other fingers at least adjacent their pointsof interconnection with said band to maintain their bracing angularrelation with said shorter fingers by limiting movement of said bandtoward the opposite end of said container member, said abutment meansbeing excised from the material of said shorter fingers adjacent theinterconnection of the same with said body portion.

7. The end construction of claim 6 wherein side portions of adjacentflanges are interleaved in telescopic relation.

8. A container-forming blank having la first continuous score lineextending across the same inwardly of a margin thereof, a second scoreline extending across said blank inwardly of said first score line `andbeing interrupted by a plurality of spaced excised portions having theiraxes of greatest dimension at substantially right angles to said secondscore line which intersects said portions near the centers of the same,and a. further score line extending across said blank inwardly of saidsecond score line, said excised portions being substantially S-shaped.

9. A cover member for a cylindrical container comprising a `plurality ofinwardly extending flanges, and a closure disk-like member engaged bysaid iianges, each of said flanges being formed from a pair ofinterconnected fingers one of which is connected to the body portion ofsaid ycover member and the other of which is connected to `a continuousmarginal band extending inwardly from an end of said body portion and inengagement with a surface thereof, one of the iingers of each pair beingshorter in length than the other, said shorter ngers being connectedwith said body portion and the other fingers being connected with saidband, said band being in engagement with the outer surface of said bodyportion and being movable relative thereto toward and away from theopposite end of said body portion, the movement of said band toward saidopposite end being limited by abutment means carried by said bodyportion, said abutment means being in the form of spaced projectionscoplanar with said body portion and positioned to abut said other ngersat their points of interconnection with said band to maintain theirbracing angular relation with said shorter fingers by limiting movementof said band toward the opposite end of said body portion.

lO. A cover member for a cylindrical container comprising a plurality ofinwardly extending anges, and a closure disk-like member engaged by saidilanges, each of said flanges being formed from a pair of interconnectedlingers one of which is connected to the body portion of said covermember and the other of which is connected to la continuous marginalband extending inwardly from an end of said body portion yand inengagement with a surface thereof, one of the fingers of each pair beingyshorter in length than the other, said shorter iingers beingconnectedrwith said body portion and the other fingers being connectedwith said band, side margins of adjacent anges being interleaved intelescopic relation, said band being in engagement with the outersurface of said body portion and being movable relative thereto towardand away from the opposite end of said body portion, the movement ofsaid band toward said opposite end being limited by abutment meanscarried by said body portion, said abutment means being in the form ofspaced projections coplanar with said body portion and positioned toabut said other fingers at their points of interconnection with saidband to maintain their bracing angular relation with said shorterfingers by limi-ting movement of said band toward the opposite end ofsaid body portion.

11. A cylindrical container' formed from paperboard and including a bodyportion, end closure supportingconstruction and end closure, said body'portion being circumferentially subdivided into a plurality of foldablesections by longitudinally extending scores, said end closure supportingconstruction including a plurality of radially inwardly directed flangesfoldably attached to each of said sections, each of said anges beingformed from paired top yand bottom lingers foldably interconnected alongtheir innermost margins, the top fingers of said lianges being foldablyconnected at their base to edge margins of said sections andthe bottomlingers of said flanges being foldably connected at their base to acylindrical band which is slidably received about the outer surface ofsaid body portion, said ybottom lingers being of greater length thansaid top fingers to place their base connections with said band axiallyand radially outwardly of the base connections of said top fingers thusplacing said bottom lingers in inclined bracing relation with said topngers, said lianges being dimensioned for side-by-side positioning andextending radially inwardly to define an annular rim on which theperipheral marginal portion of said end closure is received in supportedrelation.

12. A blank for forming a collapsible container, said blank comprising abody portion panel having integrally formed therewith along at least oneof its margins a plurality of nger panels, each of said finger panelshaving integrally formed therewith along its margin spaced from saidbody portion panel a second nger panel, and a continuous margin stripintegrally formed with each of said second finger panels along marginsspaced from said first linger panels, each of said p-anels and saidstrip being foldable relative to one another along the lines ofconnection of the same, opposite edges of a plurality of the connectedlinger panels each being recessed along one edge and formed with atongue along an opposite edge to cooperate with adjacent edges ofadjacent linger panels in overlapping relation upon the forming of acontainer from said blank, said connected linger panels being ofsufficient width to provide for interleaving of tongue forming edgeswith adjacent recess forming edges upon the forming of a container.

13. A cover member for a cylindrical container comprising a plurality ofradially inwardly extending flanges, and a closure disk-like memberengaged by said lianges, each of said flanges being formed from a pairof interconnected lingers one of which is connected to the body portionof said cover member yand the other of which is connected to acontinuous marginal band extending inwardly from -an end of said bodyportion and in engagement with a surface thereof, one of the fingers ofeach pair being shorter in length than the other, said shorter lingersbeing connected with said body portion and the other fingers beingconnected with said band, said band being in engagement with the outersurface of said body portion and being movable relative thereto towardand away from the opposite end of said body portion, the movement ofsaid band toward said opposite end being limited by abutment meanscarried by said body portion to maintain the other finger of each liangein angular bracing relation with the shorter linger interconnectedtherewith.

14. A cylindrical container member formed from paperboard and includinga body portion, end closure supporting construction and end closure,said body portion being circumferentially subdivided into a plurality offoldable sections by longitudinally extending scores, said end closuresupporting construction including a plurality of radially inwardlydirected lianges each foldably attached to one of said sections, each ofsaid lianges being formed from paired inner and outer ng'ers foldablyinterconnected along their radially innermost margins, the inner fingersof said anges being foldably connected at their radially outermostmargins to edge margins of said sections and the outer lingers of saidlianges being foldably connected at their radially outermost margins toa cylindrical band which is slideably received about the outer surface'of said body portion, said outer lingers being of greater radiallyinwardly directed length than said inner fingers to place their radiallyoutermost margin connections with said band axially and radiallyoutwardly of the radially outermost margin connections of said innerlingers thus placing said outer lingers in inclined bracing relationwith said inner lingers, said lianges being laterally dimensioned ofside-by-side positioning and extending radially inwardly to deline anannular rim on which the peripheral marginal portion of said end closureis received in supported relation within said body portion.

15. The container of claim 14 wherein the side portions of adjacentllanges are interleaved in telescopic relation.

16. An end construction of a cylindrical container member comprising aplurality of radially inwardly extending anges, and an end closure disksupported by said flanges, each of said lianges being formed from a pairof interconnected lingers one of which is connected to the body portionof said container member and the other of which is connected to acontinuous marginal band extending inwardly from the end of saidcontainer member provided with said anges and in sliding engagement witha surface of said body portion, one series of similar lingers of saidflanges being in engagement with said closure disk, the other series ofsimilar lingers of said llanges being in angular bracing relation withthe lingers of said one series, and linger abutment means excised fromthe material of said container member and in abutment with the fingersof said other series to limit the extent to which said band is slideablealong the surface of said body portion to maintain the other of saidseries of lingers in angular bracing relation.

17. An end construction of a cylindrical container member comprising aplurality of radially inwardly extending anges, and an end closure disksupported by said lianges, each of said anges being formed from a pairof interconnected lingers one of which is connected to the body portionof said container member and the other of which is connected to acontinuous marginal band extending inwardly from the end of saidcontainer member provided with said anges and in sliding engagement witha surface of said body portion, one series of similar lingers of saidanges being in engagement with said closure disk, the other series ofsimilar fingers of said flanges being in angular bracing relation withthe lingers of said one series, and marginal band abutment means forminga part of said container member and in abutment with the free edge ofsaid marginal band to limit the extent to which said band is slideablealong the surface of said body portion in a direction inwardly of theend of said container member and to maintain the other of said series oflingers in angular bracing relation.

18. An end construction of a cylindrical container member comprising aplurality of radially inwardly extending lianges, and an end closuredisk supported by said lianges, each of said flanges being formed from apair of interconnected lingers one of which is connected to the bodyportion of said container member and the other of which is connected toa continuous marginal band extending inwardly from the end of saidcontainer member provided with said lianges and in sliding engagementwith a surface of said body portion toward and away from the oppositeend of said container member, one of the lingers of each pair beingshorter in length than the other finger, the movement of said bandtoward said opposite end being limited by abutment means carried by saidbody portion to maintain the other linger of each flange in angularbracing relation with the shorter linger interconnected therewith.

19. A blank for forming a collapsible container, said blank comprising abody portion panel longitudinally subdivided into a plurality offoldable sections by longitudinally extending score lines, each of saidsections along an end margin having integrally formed therewith arelatively foldable linger panel which is transversely scored forfolding upon itself, and a continuous margin strip integrally formedwith each of said finger panels along end margins spaced from lingerpanel connection with said sections, one longitudinal side margin ofeach iinger panel being V-shaped and projecting toward lthe adjacentside margin of an adjacent nger panel and transversely beyond theadjacent longitudinal score line deiining the section to which said ngerpanel is connected to be interleaved in its folded condition with thefolded adjacent nger panel upon erection of said container.

20. A blank for forming a collapsible container, said blank comprising abody portion panel longitudinally subdivided into a plurality offoldable sections by longitudinally extending score lines, each of saidsections along an end margin having integrally formed therewith arelatively foldable finger panel which is transversely scored forfolding upon itself, and a continuous margin strip integrally formedWith each of said finger panels along end margins spaced from fingerpanel connection with said sections, lone longitudinal side margin ofeach finger panel being V-shaped and projecting toward the adjacent sidemargin of an adjacent linger panel and transversely beyond the adjacentlongitudinal score line dening the section to 18 which said finger panelis connected to be interleaved in its folded condition with the foldedadjacent nger panel upon erection of said container, the oppositelongitudinal side margin of each finger panel being recessed toaccommodate interleaving between adjacent nger panels during folding ofsaid blank to form a cylindrical container.

References Cited in the le of this patent UNITED STATES PATENTS2,009,505 Leopold July 30,- 1935 2,160,488 Ringler May 30, 19392,163,703 Ringler June 27, 1939 2,189,436 Roseniield Feb. 6, 19402,395,558 Lighter Feb. 26, 1946 2,398,404 Brooks Apr. 16, 1946 2,419,765Crosley Apr. 29, 1947 2,555,700 ONeil June 5, 1951 2,577,588 Paige Dec.4, 1951 FOREIGN PATENTS 64,093 Denmark Oct. 29, 1945

